Guy Ritchie, who made two Sherlock Holmes movies starring Robert Downey Jr., will direct and produce a series about the legendary detective at a younger age. Hero Fiennes Tiffin -- whose credits include Ritchie's The Ministry of Ungentlemanly Warfare and The Woman King -- will headline Young Sherlock. "In Young Sherlock, we're going to see an exhilarating new version of the detective everyone thinks they know in a way they've never imagined before," Ritchie said in a statement. "We're going to crack open this enigmatic character, find out what makes him tick, and learn how he becomes the genius we all love."